当前位置:
X-MOL 学术
›
J. Mater. Chem. A
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Band alignment of Pb–Sn mixed triple cation perovskites for inverted solar cells with negligible hysteresis
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2019-03-14 , DOI: 10.1039/c8ta11891d
Long Ji 1, 2, 3, 4, 5 , Xiangzhao Zhang 5, 6, 7, 8 , Ting Zhang 1, 2, 3, 4, 5 , Yafei Wang 1, 2, 3, 4, 5 , Feng Wang 1, 2, 3, 4, 5 , Zhiqin Zhong 1, 2, 3, 4, 5 , Zhi David Chen 9, 10, 11, 12, 13 , Zewen Xiao 5, 14, 15, 16 , Li Chen 1, 2, 3, 4, 5 , Shibin Li 1, 2, 3, 4, 5
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2019-03-14 , DOI: 10.1039/c8ta11891d
Long Ji 1, 2, 3, 4, 5 , Xiangzhao Zhang 5, 6, 7, 8 , Ting Zhang 1, 2, 3, 4, 5 , Yafei Wang 1, 2, 3, 4, 5 , Feng Wang 1, 2, 3, 4, 5 , Zhiqin Zhong 1, 2, 3, 4, 5 , Zhi David Chen 9, 10, 11, 12, 13 , Zewen Xiao 5, 14, 15, 16 , Li Chen 1, 2, 3, 4, 5 , Shibin Li 1, 2, 3, 4, 5
Affiliation
![]() |
Substituting the toxic lead (Pb) in Pb halide perovskites by less harmful Sn is an attractive approach towards obtaining environment-friendly perovskite solar cells. However, complete substitution of Pb by Sn undermines the stability of perovskite materials and devices. Therefore, partial substitution of Pb by Sn has attracted much interest to balance environmental considerations and device performance. Here, we exploit the Sn ratio to optimize the band alignment in Pb–Sn mixed perovskite solar cells with an inverted structure. The band edge properties of Pb–Sn mixed triple cation perovskites (Cs/MA/FAPb1−xSnxX3, X = Cl, Br, I) for efficient inverted solar cells are studied via simulation and experiment. The optimized solar cell with x = 0.336 shows the highest power conversion efficiency of 16.10% along with negligible hysteresis. We demonstrate that the devices are stable and maintain 93% of the initial PCE under ambient conditions for 30 days. These results suggest that bandgap engineering is a feasible approach to balance the efficiency and stability of Pb–Sn mixed PSCs.
中文翻译:
Pb-Sn混合三阳离子钙钛矿的带隙对准对于滞后作用可以忽略不计的倒置太阳能电池
用危害较小的锡代替卤化钙钛矿中的有毒铅(Pb)是获得环保型钙钛矿太阳能电池的一种有吸引力的方法。但是,用Sn完全取代Pb会破坏钙钛矿材料和装置的稳定性。因此,用Sn部分取代Pb引起了人们对平衡环境因素和器件性能的兴趣。在这里,我们利用Sn比率优化具有倒置结构的Pb-Sn混合钙钛矿太阳能电池的能带排列。的Pb-Sn的能带边缘属性混合三重阳离子的钙钛矿(CS / MA / FAPb 1- X的Sn X X 3,X =氯,溴,I)为有效的倒置的太阳能电池进行了研究通过模拟和实验。x = 0.336的优化太阳能电池显示出最高的16.10%的功率转换效率以及可忽略的磁滞。我们证明了该设备是稳定的,并且在环境条件下可维持93%的初始PCE 30天。这些结果表明,带隙工程是平衡Pb-Sn混合PSC效率和稳定性的可行方法。
更新日期:2019-04-10
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
Pb-Sn混合三阳离子钙钛矿的带隙对准对于滞后作用可以忽略不计的倒置太阳能电池
用危害较小的锡代替卤化钙钛矿中的有毒铅(Pb)是获得环保型钙钛矿太阳能电池的一种有吸引力的方法。但是,用Sn完全取代Pb会破坏钙钛矿材料和装置的稳定性。因此,用Sn部分取代Pb引起了人们对平衡环境因素和器件性能的兴趣。在这里,我们利用Sn比率优化具有倒置结构的Pb-Sn混合钙钛矿太阳能电池的能带排列。的Pb-Sn的能带边缘属性混合三重阳离子的钙钛矿(CS / MA / FAPb 1- X的Sn X X 3,X =氯,溴,I)为有效的倒置的太阳能电池进行了研究通过模拟和实验。x = 0.336的优化太阳能电池显示出最高的16.10%的功率转换效率以及可忽略的磁滞。我们证明了该设备是稳定的,并且在环境条件下可维持93%的初始PCE 30天。这些结果表明,带隙工程是平衡Pb-Sn混合PSC效率和稳定性的可行方法。